Cordova: Do it. I'm dying anyway. There's nobody here. Nobody will ever know what went down. Call it self-defense. Steve: There is no way I'm going to make it that easy for you. Cordova: It's like this or I go out the slow way. I'm tired of that option. So you pull the trigger or I will.

Chin: I reached out to an FBI contact that recommends we try vascular mapping. Steve: What is it?Chin: It's when you isolate a suspect vain pattern and running it against the Federal database, just like a fingerprint.